If this points to JDK 11, Elias thought, the whole house of cards falls before the first brick is laid.
This hard ceiling exists because JDeveloper 12.2.1.4 relies on legacy Java EE deployment routines, internal class visibility behaviors unique to the Java 8 JVM, and native libraries compiled specifically against JDK 8 specifications. 💾 Pre-installation Setup: Deploying the Correct Java JDK jdeveloper 12.2.1.4 java version
If you’re still working with Oracle JDeveloper 12c (12.2.1.4), it’s important to lock in the correct Java version to avoid instability, compilation errors, or IDE crashes. If this points to JDK 11, Elias thought,
JDeveloper is attempting to start using a 32-bit JDK or a newer Java version (like JDK 11) found in your system path. If this points to JDK 11